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.. E. Proposed Floodplain Management Policy Objectives Using national and regional trends and philosophies, current and past local policies, and recommendations from the IRP and CAG as a backdrop for updating city of Boulder floodplain policies, staff is recommending five objectives to update and adjust local floodplain policy. A successful program must address and implement all five objectives to meet multiple floodplain management goals for preservation, preparedness, education, regulation and mitigation. In addition, these policies need to be incorporated into multi-disciplined activities performed in all city departments to truly reflect the city's commitment to meeting floodplain objectives. Our floodplain management program currently performs activity in all of the areas outlined. However, staiIis recommending the following adjustments to adequately balance the full range of objectives to better serve the community . 1. "Preserve Floodplains for Floods" by recognizing the prescriptive floodplain easement that offers "beneficial functions" for flood hazard reduction, water quality enhancement, wetland protection, wildlife habitat, riparian corridors, recreation, alternate modes travel, environmental relief, aesthetics, and urban open lands. Tools for Implementation: a) Public Land Acquisition: Continue with the high hazard property acquisition and building removal program we currently implement and enhance this activity to pursue undeveloped floodplain lands or creek corridors that offer "beneficial functions" and other community goals. b) Private Land Dedication: Development applicants are already required to dedicate lands impacted by major drainageways to provide a corridor for storm water conveyance under Chapter 10-5, B.R.C. 1981. This requirement could be expanded to include dedication and preservation of floodplain areas for both conveyance and flood storage, and where "beneficial functions" currently exist. c) Integrate Multiple Program Activities: Current programs, such as wetland protection, water quality and greenways, should be integrated with floodplain preservation to best achieve multiple goals through centralized coordination and oversight to ensure effectiveness. 2. "Be Prepared for Floods" through updated hydrology, multiple-frequency storm analysis, detailed risk assessments, enhanced early warning systems, multiple emergency notification measures, understandable response plans, workable recovery plans, and ongoing storm monitoring. Tools for Implementation: a) Develop "State of the Art" Hydrology and Hydraulic Models: Use modern and advanced models to study updated hydrology and hydraulic flood conditions. Develop a citywide floodplain model combining the 13 separate floodplain models for each creek to permit analysis of multiple-frequency and multiple-stonn event scenarios that may occur over more than one drainage basin at a time (we can not do this with existing models). This would allow staff to study the reaction of local floodplains based on varying storm conditions and how the storm drainage system responds to the impacts. b) Perform a Detailed Risk Assessment: Using existing and updated flood information, prepare a detailed analysis of risk to structures and people. Estimates of financial losses and risk to life may be quantified and the greatest risks may be identified for flood preparedness and mitigation measures. c) Improve Coordination with Emergency Management Office: A focused effort to coordinate flood emergency preparedness activities with the city/county Emergency Management Office (Larry Stern, Emergency Management Director) should be initiated to compliment and integrate floodplain management activities and implement updated plans and actions. d) Enhance the Early Warning System: The early warning system is currently most effective for mountain canyon generated flooding on Boulder Creek, Four Mile Canyon Creek and South Boulder Creek. The system should be 10